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A288737 Positions of 0 in A288736; complement of A288740. 3
1, 4, 5, 6, 7, 10, 13, 16, 17, 18, 19, 22, 23, 24, 25, 28, 31, 34, 37, 40, 41, 42, 43, 46, 47, 48, 49, 52, 55, 58, 59, 60, 61, 64, 65, 66, 67, 70, 73, 76, 79, 82, 85, 88, 89, 90, 91, 94, 95, 96, 97, 100, 103, 106, 107, 108, 109, 112, 113, 114, 115, 118, 121 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Conjecture:  a(n)/n -> 2, and  0 < 2 - a(n)/n) < 1 for n >= 1.

LINKS

Clark Kimberling, Table of n, a(n) for n = 1..10000

MATHEMATICA

s = {0, 0}; w[0] = StringJoin[Map[ToString, s]];

w[n_] := StringReplace[w[n - 1], {"00" -> "1000", "10" -> "01"}]

Table[w[n], {n, 0, 8}]

st = ToCharacterCode[w[22]] - 48   (* A288736 *)

Flatten[Position[st, 0]]  (* A288737 *)

Flatten[Position[st, 1]]  (* A288740 *)

CROSSREFS

Cf. A288736, A288740.

Sequence in context: A065028 A107756 A080723 * A139448 A022561 A213524

Adjacent sequences:  A288734 A288735 A288736 * A288738 A288739 A288740

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jun 16 2017

STATUS

approved

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Last modified April 11 02:02 EDT 2021. Contains 342886 sequences. (Running on oeis4.)